EG study or Blitz game? New plagiarism threats...

Recently, the following position was entered into a problem-server's database, claiming the entrant had arrived at the position -- and the not-so-difficult solution (white draws) -- from a blitz game (against an opponent who shares the name of an OTB GrandMaster, though I find no record of such a non-GM player in the FIDE rating list).

Naturally, I am skeptical that such an opportunity would have presented itself in a game -- strange things do happen in blitz, but rarely with such economy!

(= 5+5 )

Anybody recognize this position from a study (perhaps the end of a study)?
Thanks.

The obvious threat here is that a hoax is created on one problem server, and it migrates to other servers -- perhaps even appears in print media -- and a few decades later, problemists are left to sort these matters out.

--UPDATE:--
After finding the exact position online (http://www.genios64.com/2009/03/03/atrapado-sin-salida/), I forced a confession...
Unfortunately, the site given -- like so many others -- doesn't list the composer, publication, year, etc (or am I just language-challenged?).